I wasn’t reading well enough … I just noticed that the puppy you’re interested in is a Newf X Husky. Thing is, the reason people buy purebreed dogs is not just because they like the way they look … it’s also because, within the vagaries of nature, you can have some confidence that you’ll know something about their behaviour.
An average example of a particular breed is likely to behaviour like others of the same breed. So, if you want a herding dog, you’ll look at Border Collies or Kelpies or Corgis. If you want a guardian breed you might look at Maremmas or Pyrs. To work out whether a dog is likely to suit you, you need to look at what it was bred for … if you want a laid back, lap dog, you probably shouldn’t be looking at working breeds, for example.
Somewhere in the last couple of years, there was a very long, and ultimately acrimonious discussion on the Dope about the heritability of behaviour, which has lots of good information about this issue, as a well as a few lunatic opinions … worth searching for.
This is a long way around saying, that if you buy a cross-breed puppy, you really won’t know what you’ll be getting. I hasten to add that I have nothing against cross-breeds, of my five dogs, four of them are mixes of various kinds.
What it did mean was that I couldn’t make much of a prediction about what kind of temperament those dogs were likely to have, based on their breeding.
Huskies were bred for hard work and independent thinking, great dogs if you accept them on their own terms, and don’t mind an escape artists who sheds like nobody’s business. 
With a cross-breed, you might end up with a puppy who looks like a Newf and acts like a Newf, you might get one which looks like a Newf and acts like a Husky, or vice versa. You might get one which shares the best and worst traits of its parents, you really have no way of knowing.
This doesn’t have to be a bad thing, dogs are, I believe, by and large as good as their owners let them be, so your puppy will be pretty much what you make of it. But some percentage of your puppy’s behaviour will be genetically determined, and you can’t really predict that with a cross-breed puppy.
Huskies and Malamutes, for example, are not always good with smaller animals, they tend to a high prey drive. They can also be a little harder to train because they have their own ideas about things, because that’s part of what the breed is about.
What I’m suggesting is that with this puppy, you won’t necessarily be able to expect Newf-like behaviour, you’re going to have to take the puppy on its own terms, and deal with whatever kind of dog the genetic mix throws up. This is true of all dogs of course, purebreed or not, but purebreed behaviour is likely to be a bit more predictable.
As long as you’re committed to the dog you have in front of you rather than some imaginary dog, you’ll doubtless end up with a loyal friend and good companion, but it’s something to be conscious of.
And just because your puppy is a mix of two breeds doesn’t mean that you won’t have to worry about inherited diseases. Both Newfoundlands and Huskies are prone to hip dysplasia, as an example, so crossing two different breeds prone to the same problem, gives you just as much of a chance of offspring with problems.
I was never a fan of crating until I took on a 50kg, untrained Neapolitan Mastiff, at which point I became a fan. It allowed him to be in the house without being a danger to my cats or my house. I bought a giant-sized crate, so he had plenty of room, and it was really just a training tool. Once I was confident he was house-trained and safe with the cats and other dogs, I stopped crating him. Without the crate I’m not sure I would have been able to have him as a house dog.
Many dogs enjoy their crates, they see them as their den, a safe place to go for some peace and quiet. Crating will assist with house training, and it will help keep a puppy safe (so it’s not eating things that might kill it), while keep your house safe from a sharp-toothed, hyperactive, destructo machine, when you’re not around to supervise.
Do a bit of searching for articles on crate training and see what you think.
I hope I haven’t come across as trying to put you off this puppy, because that wasn’t at all my intention. The sad reality is that many dogs end up in pounds because people bought dogs unsuitable for their skills or circumstances. If you have an idea of what you’re getting into, you’re going to be in a much better position of having a dog you’ll be happy with for the long-term.
Breed rescues, btw, often take dogs from pounds and shelters, as well as picking up surrendered dogs before they get to shelters, so if you decided to go that route, you’d still be saving a pound dog.
I haven’t found male dogs to be more aggressive, particularly when they’re desexed, all of my dogs are desexed males and they live happily together.
The puppy in your picture is very cute, and whatever mix she is, with good care and consistent training she’ll be a wonderful dog.